Xerox Design ProjectVelocity Detection

Luke Pontz, Pat Davoli, Ingvar Jochumsson, Christian Backus

Define the problem◦ Problem statement, design specs◦ Customer needs

Brainstorming Evaluation CAD Drawings Analysis Conclusions

Agenda

Design a system that effectively calculates the velocity of paper as it moves throughout the iGen4

Must detect the velocity of an 8.5”x11” sheet moving somewhere between 250 to 750mm/s

Tolerance level of ±0.25%

Defining the Problem/ Design Specs

MarketMain Competitors Major Clients

Cannon Hewlett-Packard Kodak Lexmark IBM Dell Samsung

Health Now BP Microsoft Credit Service MU Health Continental Airlines

Lower volume output Requires cheap and easy full color printing Requires fast turn around Digital offers accurate proofs Digital printing offers the most affordable

way to customize marketing materials, direct mail pieces, letters, etc.

Target Market

Cost Effective Low Maintenance Durable Effective Meets Specifications

Customer Needs

Single Infrared Sensor Double Infrared Sensor Sonar Proximity Sensors Photoresistors

Brainstorming Ideas

Evaluation Design Matrix

Cost (5.65%) 5 0.28 5 0.28 4 0.23Maintenance (9.77%) 2 0.20 2 0.20 4 0.39Durability (19.47%) 3 0.58 3 0.58 4 0.78Effectiveness (21.70%) 3 0.65 4 0.87 5 1.09Design Specs (43.41%) 4 1.74 5 2.17 4 1.74TOTAL

Single IR Double IR Prox. Sensor

3.45 4.10 4.22

Weighted Matrix

Single IR Double IR Sonar Prox. Sensor Photoresistors

Cost + + - 0 +

Maintenance - - + + 0

Durability 0 0 + + +

Effectiveness 0 + 0 + 0

Design Specs + + 0 + 0

Total + 2 3 2 4 2

Total - 1 1 1 0 0

TOTAL 1 2 1 4 2

LED Infrared Sensor

Best Idea

Infrared’s are cheap, easy to produce in large quantities, and have little maintenance

The typical life span of an LED is around 50,000 hours

Easy to replace

Cost Efficiency

Sustainability◦ Social- Has no adverse impact◦ Environmental- Occasional disposal of LEDs;

minimal impact◦ Economical- Very inexpensive

Analysis

Questions?

Sources http://ikalogic.com/ir_prox_sensors.php http://www.fargocontrols.com/sensors/capac

itive_op.html http://en.wikipedia.org/wiki/Xerox http://www.xerox.com/annual-report-2010/x

erox-business/competition.html http://

www.xerox.com/annual-report-2010/xerox-business.html